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Int. J. Mol. Sci. 2018, 19(7), 2017;

Integrating Thyroid Hormone Signaling in Hypothalamic Control of Metabolism: Crosstalk Between Nuclear Receptors

Laboratory BVBGR, LR11ES31, Higher Institute of Biotechnology of SidiThabet (ISBST), Department of Biotechnology, University of Manouba, Sidi Thabet 2020, Tunisia
Laboratory of Genetics, Immunology and Human Pathology, Faculty of Sciences of Tunis, Department of Biology, University Tunis El Manar, Tunis 2020, Tunisia
CNRS UMR 7221 “Evolution of Endocrine Regulations” Department of “Life Adaptations” MuséumNational d’HistoireNaturelle 57, rue Cuvier CP 32, 75231 Paris, CEDEX 05, France
Author to whom correspondence should be addressed.
Received: 7 June 2018 / Revised: 6 July 2018 / Accepted: 6 July 2018 / Published: 11 July 2018
(This article belongs to the Special Issue Molecular Biology of Nuclear Receptors)
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The obesity epidemic is well recognized as a significant global health issue. A better understanding of the energy homeostasis mechanisms could help to identify promising anti-obesity therapeutic strategies. It is well established that the hypothalamus plays a pivotal role governing energy balance. The hypothalamus consists of tightly interconnected and specialized neurons that permit the sensing and integration of several peripheral inputs, including metabolic and hormonal signals for an appropriate physiological response. Current evidence shows that thyroid hormones (THs) constitute one of the key endocrine factors governing the regulation and the integration of metabolic homeostasis at the hypothalamic level. THs modulate numerous genes involved in the central control of metabolism, as TRH (Thyrotropin-Releasing Hormone) and MC4R (Melanocortin 4 Receptor). THs act through their interaction with thyroid hormone receptors (TRs). Interestingly, TH signaling, especially regarding metabolic regulations, involves TRs crosstalk with other metabolically linked nuclear receptors (NRs) including PPAR (Peroxisome proliferator-activated receptor) and LXR (Liver X receptor). In this review, we will summarize current knowledge on the important role of THs integration of metabolic pathways in the central regulation of metabolism. Particularly, we will shed light on the crosstalk between TRs and other NRs in controlling energy homeostasis. This could be an important track for the development of attractive therapeutic compounds. View Full-Text
Keywords: energy balance; hypothalamus; thyroid hormone signaling; nuclear receptors energy balance; hypothalamus; thyroid hormone signaling; nuclear receptors

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Kouidhi, S.; Clerget-Froidevaux, M.-S. Integrating Thyroid Hormone Signaling in Hypothalamic Control of Metabolism: Crosstalk Between Nuclear Receptors. Int. J. Mol. Sci. 2018, 19, 2017.

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